Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014

The two westerly branches have a significant impact on the climate of the area on the eastern side of the Tibetan Plateau when flowing around it. A continuous drought event in Southwest China from the winter of 2009 to the spring of 2014 caused huge economic losses. This research focuses on the dyna...

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Main Authors: Yiwei Ye, Rongxiang Tian, Zhan Jin
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/15/8/2198
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author Yiwei Ye
Rongxiang Tian
Zhan Jin
author_facet Yiwei Ye
Rongxiang Tian
Zhan Jin
author_sort Yiwei Ye
collection DOAJ
description The two westerly branches have a significant impact on the climate of the area on the eastern side of the Tibetan Plateau when flowing around it. A continuous drought event in Southwest China from the winter of 2009 to the spring of 2014 caused huge economic losses. This research focuses on the dynamic field anomalies over the Tibetan Plateau during this event using statistical analysis, attempts to decipher its mechanism on drought in Southwest China, and provides a regression model. We established that the anticyclone and downdraft over the Tibetan Plateau were weaker than usual during the drought, which would reduce the southward cold airflow on the northeast of the Tibetan Plateau and strengthen the west wind from dry central Asia on the south of the plateau. As a result, a larger area of the southwest region in China was controlled by the warm and dry air mass, which was acting against precipitation. The results will be of reference value to the drought forecast for Southwest China, and also encourage further research about how the Tibetan Plateau influence the climate on its eastern side.
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spelling doaj.art-36c7ea2f7f0b49d2aa32181320b779e62023-11-17T21:13:24ZengMDPI AGRemote Sensing2072-42922023-04-01158219810.3390/rs15082198Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014Yiwei Ye0Rongxiang Tian1Zhan Jin2Key Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, School of Earth Sciences, Zhejiang University, Hangzhou 310027, ChinaKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, School of Earth Sciences, Zhejiang University, Hangzhou 310027, ChinaKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, School of Earth Sciences, Zhejiang University, Hangzhou 310027, ChinaThe two westerly branches have a significant impact on the climate of the area on the eastern side of the Tibetan Plateau when flowing around it. A continuous drought event in Southwest China from the winter of 2009 to the spring of 2014 caused huge economic losses. This research focuses on the dynamic field anomalies over the Tibetan Plateau during this event using statistical analysis, attempts to decipher its mechanism on drought in Southwest China, and provides a regression model. We established that the anticyclone and downdraft over the Tibetan Plateau were weaker than usual during the drought, which would reduce the southward cold airflow on the northeast of the Tibetan Plateau and strengthen the west wind from dry central Asia on the south of the plateau. As a result, a larger area of the southwest region in China was controlled by the warm and dry air mass, which was acting against precipitation. The results will be of reference value to the drought forecast for Southwest China, and also encourage further research about how the Tibetan Plateau influence the climate on its eastern side.https://www.mdpi.com/2072-4292/15/8/2198Tibetan Plateaudrought in Southwest Chinadynamic effectsanticyclone on Tibetan Plateau
spellingShingle Yiwei Ye
Rongxiang Tian
Zhan Jin
Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014
Remote Sensing
Tibetan Plateau
drought in Southwest China
dynamic effects
anticyclone on Tibetan Plateau
title Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014
title_full Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014
title_fullStr Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014
title_full_unstemmed Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014
title_short Dynamic Effects of Atmosphere over and around the Tibetan Plateau on the Sustained Drought in Southwest China from 2009 to 2014
title_sort dynamic effects of atmosphere over and around the tibetan plateau on the sustained drought in southwest china from 2009 to 2014
topic Tibetan Plateau
drought in Southwest China
dynamic effects
anticyclone on Tibetan Plateau
url https://www.mdpi.com/2072-4292/15/8/2198
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AT rongxiangtian dynamiceffectsofatmosphereoverandaroundthetibetanplateauonthesustaineddroughtinsouthwestchinafrom2009to2014
AT zhanjin dynamiceffectsofatmosphereoverandaroundthetibetanplateauonthesustaineddroughtinsouthwestchinafrom2009to2014